#!/usr/bin/node

const user = {
  name:"lijinjie",
  age: 20,
  qq:  "1805639715"
};

const log = console.log;

log(`name: %s`,user.name);
log(`age: %d`,user.age);
log(`qq: %j`,user.qq);

log(`qq: %s`,user.qq);
log(`qq:`,user.qq);
log(`qq: `+user.qq);
log(`qq: ${user.qq}`);

var count = 123;
console.error('count:%d',count);
